Product Details:

• Designed to Maintain Vacuum in The Event of a Power Failure
• 
  
  CRL Wood's Vacuum Back-Up System is available for most of below-the-hook vacuum lifters, this option consists of an auxiliary vacuum generating system with an independent power source, which is designed to maintain vacuum in the event of a power failure. The DC Vacuum Back-Up System is ideal for use wherever AC or compressed air power is not reliable or whenever the added security of an secondary power system is desired.